observer : Java Glossary

go to home page O words local find full screen, hide local find menu Google search web for more information on this topic jump to foot of page translate this page with Babelfish punctuation 0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z (all) ©1996-2009 Roedy Green, Canadian Mind Products
observer
This is a mechanism of links so that components can directly notify each other when something interesting happens. There are typically several observers of one observed object. When something interesting happens in the observed object, it calls notifyObservers which in turn notifies each of the observers by calling their update methods. This is a completely different communication mechanism from creating and posting events, which typically flow only from child to parent. Observable and Observer are interfaces that any class may elect to implement.
design patterns
Wikipedia Observer entry
CMP homejump to top You can get the freshest copy of this page from: or possibly from your local J: drive (Java virtual drive/mindprod.com website mirror)
http://mindprod.com/jgloss/observer.html J:\mindprod\jgloss\observer.html
CMP logofeedback Please email your feedback for publication, errors, omissions, typos, formatting errors, ambiguities, unclear wording, broken/redirected link reports, suggestions to improve this page or comments to Roedy Green : feedback email
mindprod.com IP:[65.110.21.43]
view BlogYour face IP:[38.107.191.103]
You are visitor number 9,848.